So far I love my Bed Head Dumb Blonde and Got2B SoSmooth One Minute Conditioner but they both have Soy Protein in it. I would love to use the Dumb Blonde more often because it makes my hair so soft but I only use it when it’s time to get a touch up and it helps me get over that that 8 week mark. I just need to know if anyone knows of any information on this preventing growth.